Answer:
e. All of the above are correct.
Explanation:
Active transport is a type of transport in living systems in which molecules/ions/substances are moved or transported against their concentration gradient i.e. from a region where the substance is LOW to a region which it is HIGH, across a membrane. Since molecules are transported across a memembrane against their concentration gradient, an energy input in form of ATP is needed to do so.
Active transport is used in living systems to transport out secretory products and waste material against concentration gradients, take up nutrients from the environment against concentrations gradients etc. Since ions are substance moved by active transport from a low region to high region, there is an imbalance in the intracellular concentration of ions, such as Na, K etc.
Since there is no equilibrium in the concentration of ions on opposite sides of the membrane, an electric potential is formed across the membrane i.e. one part of the membrane will be more positively charged than the other.
https://quizlet.com/492462564/chapter-14-human-genetics-karyotype-activity-flash-cards/
Answer:
<h2>RNA nucleotides may also bear adenine , guanine and cytosine bases, but instead of thymine they have another pyrimidine base called uracil (U) . as shown in the figure above, each base has a unique structures with its own set of functional groups attracted to the ring structure... </h2>
Answer:
4 answer
Explanation:
because my little cousin said so
The answer is degradation. Degradation in land is making the land to have an undesirable conditions that would make or contribute into having effects that will harm not only the land itself but to have less of having land to support plants, crops and having to have and provide the needs of a livestock to live and to be supported.
